Slicing machine



H. wEm gEr AL June 7, 1938.'

'smcme momma Filed Sept. 26, 1934 3 Sheets-Sheet 1 /6, E 4km 40 r.FRIEO'YIA Wm. 2.

- ATTORNEY n 7,1938. H'WEINER HAL 4 I Q 2,119,769

SLICING MACHINE Filed Sept. 26, 1934 3 Sheets-Shed 2 A .122 518. V ,2 iNEE. Q

' r "'I'I'I'l'Ild INVENT 1 4 57) wfl/vfn aam BY E 4 5i ATTORNEY June7,1938. I HWHNER HAL 2,119,760,

SLICING MACHINE Filed Spt: 26, 1934 5 Sheets-Sheet 3 wmx 'm WO z. FRgbmgv ORNEY' Patented June 7, 1938 UNITED STATES PATENT OFFICE- SLICINGMACHINE Application September 26, 1924, Serial No. 745,534

2 Claims.

This invention relates to slicing machines.

An object of this invention is to provide a machine of the characterdescribed, having highly improved means for finely adjusting the guideplate for the food or object to be sliced, to regulate the thickness ofthe slices.

A further object of this invention is to provide a compact and ruggedmachine of the character described, which shall be relativelyinexpensive to manufacture, simple to operate and with all practical andefficient to a high degree in use.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

The invention accordingly consists in the features of construction,combination of elements, and arrangement of parts which will beexemplified in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

In the accompanying drawings, in which is shown one of the variouspossible embodiments of this invention,

Fig. 1 is a side elevational view of a slicing machine embodying ourinvention;

Fig. 2 is a top plan view of our improved machine;

Fig. 3 is an end view of my improved machine with parts broken away toshow the interior construction;

Fig. 4 is a cross-sectional view taken on line 4-4 of Fig. 3;

Fig. 5 is a cross-sectional view taken on line 55 of Fig. 3;

Fig. 6 is a fragmentary, enlarged, detail view of the grinding device inone position thereof;

Fig. '7 is a cross-sectional view taken on line 1--'i of Fig. 6;

Fig. 8 is a perspective view of our improved clamp for attaching themachine to a table or support.

Fig. 9 is a side elevational View of a grinding device embodying theinvention and illustrating a modified construction applied to theslicing machine;

Fig. 10 is a cross-sectional view taken on line llllfl of Fig. 9;

Fig. 11 is a view of the structure shown in Fig. 9 from an oppositeside;

Fig. 12 is a view similar to Fig. 10, but showing the grinding device ininoperative position; and

Fig. 13 is a cross-sectional view taken on line l3-l3 of Fig. 12.

Fig. 14 is a fragmental elevational view illustrating a modified form ofactuating means for the knife. I 1

Referring now in detail to the drawings, 10 designates a table orsupport on which is mounted a slicing machine l2, embodying theinvention, fixed to said support by a clamp l3. The machine I 2comprises a base l5'having a top surface I 6 and being provided with araised portion I! having a top wall l8, side walls l9 and 20 and endwalls 2|. The side wall l9 defines one side of the base and the surfaceor wall l6 extends to one side of the other side wall 20. The end walls2| are located inwardly of the outer ends of the base, providing ledges2Ia at the opposite ends of the base, disposed flush with the wall I6.

Fixed to the wall I6 is a housing 22 substantially closed on one side bywall 23 and open on the opposite side, and having an end wall 24 at oneend and a top wall 25 at the top forming said end wall. Rotatablymounted on said wall 23 is a shaft 26 to which there is fixed a pinion21 and a circular cutter blade or knife 28. The

blade 28 has an inclined edge surface 28a on one side and a fiat surface28b on the opposite side thereof. The wall 23 is formed with anoutwardly extending boss 30 forming a bearing for a shaft 3|, to theouter end of which there is fixed 'a crank handle 32. Fixed to the innerend of the shaft 3| is a pinion 33 meshing with the pinion 21.

It will now be understood that upon rotating the crank handle 32, theblade 28 will rotate. As shown in Fig. 1, the wall 23 is cut away as at29, to expose a portion of the cutting edge or periphery of the blade28.

Means is provided for reciprocating the object or food to be sliced pastthe blade 28. To this end, there extends upwardly from the four cornersof the top wall [8, lugs 36 supporting a pair of parallel rods or rails31 fixed at the ends thereof to the tops of said lugs, and being spacedabove said wall. Slidably mounted on the rods 31 is a carriage 40comprising a bottom corrugated wall 4| and an upstanding wall 42 atoneend of said corrugated wall. Fixed to the underside of saidcorrugated wall 4| are pairs of symmetrically disposed, angle-shapedmembers-A4, each having a horizontal wall 44a fixed to the underside ofsaid corrugated wall, and a downwardly extending wall 45 formed with anopen ing 46 receiving therethrough one of the rods 31. An angle-shapedplate 42d fixed to the wall 42 and having a wall 42b extending awaytherefrom, serves as a handle for manipulating the carriage.

It will now be understood that the carriage 40 may be reciprocatedparallel to the circular cutter 28, whereby the food to be slicedmounted on the carriage, may be brought past the cutter for the slicingoperation. Mounted on said carriage is a member 50 for gripping the foodon the sliding carriage, to hold it rigid during the slicing operation.The member 50 may be made of sheet metal and comprises a vertical wall5| parallel to the rods 31 and being formed with spurs-52; preferablycut from the metal thereof and projecting toward the rotary blade.Extending from the wall 5| at right angles thereto is a vertical wall 53contacting the wall 42 and having at the upper end thereof a folded overedge, 55, forming a groove slidably receiving the upper edge 56 of saidwall 42. It will now be understood that the member 50 may be moved in adirection transverse to the direction of movement of the carriage,whereby to press the food toward the cutting blade.

Means is provided for adjusting the thickness of the slices. To thisend, the wall I6 is formed adjacent one end thereof with an arcuate slot60. The end wall 20 is formed (as shown in Fig. 5) with a boss SI, towhich there is screwed a vertical screw 62 having a smooth shank portion63, and a head 64 at the lower end thereof. Rotatably mounted on theshank portion 63 of the screw 62 and supported by the head 64 is a lever65 having an arm 66 extending below the wall 16, provided with a handle61 extendin through the slot 60. The lever 65 is further provided withan arm 68, at the other end of which there is a cammed flange 69.

The walls I 9 and 20 of the base are formed with bearing openings I9aand 20a, slidably receiving therethrough a shaft I0. Fixed to one end IIof said shaft is a gauge or guide plate 12 disposed substantiallyparallel to the rotary blade 28 and having 'an arcuate edge I3substantially conforming to the exposed edge of said blade. Fixed to theplate I2 is a guide pin I5 extending through an opening I6 in wall 20.

Mounted on the rod I is a plate 80 having an opening 8| receiving saidrod therethrough and being fixed thereto by a set screw 82. The plate 80is provided at the bottom thereof with a horizontal lug 83 contactingthe underside of the cam 60. There is further mounted on the rod I0 ablock 85 likewisehaving an opening 86 receiving the rod therethrough andbeing fixed thereto by a set screw 81. The block 85 is formed with arecess 90 receiving a spring pressed rounded plunger 92 contacting theinner surface 69a. of the cammed flange 69. The outer surface 69b ofsaid cammed flange contacts the member 80. It will now be understoodthat the cammed flange is received between the members 80 and 85. Uponturning the handle 61, the lever 65 will rotate about its axis 62 andwill cause sliding movement of the rod '10 by'reason of the engagementof the cam 69 between the members 80 and 85, which are fixed to saidrod. 7

The edge 60a of the wall I6 adjacent the arcuate slot 60 may be providedwith a scale 93 to indicate the position of the gauge plate I2, andhence to indicate the thickness of the slices. The scale may hegraduated to indicate the number of slices per inch. 7

It will now be noted that a very fine adjustment may be obtained, sincea swing of the lever 65through a substantial angle will move the rod I0a comparatively short distance. H

The clamp I3 is provided with a vertical wall I00, preferably having cutout portions IM to reduce the weight thereof. Extending from the lowerend of the wall I00 is a lug I02 provided with a screw threaded openingI03. Extending from the upper end of the wall I00 on one side thereof isa short arm I04 having a downwardly extending flat edge I parallel tothe wall I00. Extending from the other end of the wall I00 is a longerarm I06 having a downwardly projecting circular pin portion I01. Thewall I6 of the base of the machine is provided adjacent one end thereofwith a circular opening IIO rotatably receiving the pin portion I0'I.The adjacent ledge 2 la. is formed with a depression I I I for receivingthe edge I05 of the arm I04 of the clamp.

Received within the screw threaded opening I03 of the lug I02 is a screwII3 having a finger piece I I4 at the bottom end thereof, and a plate H5at the upper end thereof, adapted to contact the underside of the tableor support I0. It will now be understood that upon screwing the screw H3against the underside of the table, the arms I04 and I06 will be pressedagainst the ledge 2Ia and wall I6 of the base, and the edge I05 and pinI07 will be retained within the depression II I and opening I I0 forclamping the machine firmly to the support I0. The clamp may be releasedby merely unscrewing the screw II3 sufficiently to release the edge I05from the recess III. It will be noted that when the clamp is fixed inposition, the machine cannot rotate with respect to the clamp.

Means is provided for sharpening the rotary blade 28. Extending from thewall 23 of the blade housing 22 and adjacent the top wall 25, is a lug Ihaving an opening I2I disposed in a vertical plane, and an adjacentinclined opening I22. The sharpening device I23 comprises a curvedmember I25 having a handle portion I26 at one end and being providedwith a pin I2'I at the opposite end. At an intermediate portion thereofthe member I25 is formed with a bearing I28 receiving therethrough ashaft I29. Mounted on one end' of the shaft is a grinding wheel I30, andfixed to the other end of the shaft is a nut I3I.

It will be noted that when the pin I2'I is received within the openingI2 I, the grinding wheel 30 will be disposed in a vertical plane and maybe moved by manipulating the handle portion I26 against the flat surface28b of the blade 28. However, the member I25 may be lifted to remove thepin I2'I from the opening I2I and said pin may then be inserted withinthe inclined opening I 22 to bring the wheel I 30 into an inclinedplane, as shown in Figs. 6 and 7 of the drawings. By manipulating thehandle I28, the wheel I30 may then be brought against the inclinedsurface 28a of the blade. With the grind ing wheel against the surface280, or 281), rotation of the blade will cause a quick sharpening of theblade. When the grinder is not in use, the same may be entirely removedfrom the machine.

In Figs. 9 to 13, inclusive, there is shown a modified form of grindingimplement. As shown in said figures, the housing 22a for the rotaryblade 28 is provided adjacent the top thereof with a cut away portionI40. The top wall 25a and the side wall 23a of said housing are cut awayto expose a portion of the blade 28 at the top. The wall 23a of thehousing is formed with a lug I4I below the edge I40a formed by thecutaway portion I40. Said lug MI is formed with a vertical throughopening I42. The grinding device I23a shown in Figs. 9 to 13, inclusive,may

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be mounted on the lug I l! in operative and inoperative positions, aswillbe more clearly hereinafter explained. Said device I23a comprises avertical pin Hi l, the bottom end of which is receiv-cd withi theopening 542 of the lug I4I. Fixed to an intermediate portion of the pinI44 is a Z-shaped guard I45. The guard comp-rises a bottom wall I i;

fixed to said pin by a screw Hi8. Extending upwardly from the wall M5 isan inclined wall I50, and extending from said inclined wall is anoutwardly extending wall I5I. Said wall I5I sub stantially correspondsto the portion of the top wall 25a which has been cut away. Thus, in theposition shown in Fig. 12, with the grinding device in inoperativeposition, the guard substantially covers the cut away portion I40, andhence completes the housing 22a for covering the top portion of therotary blade 28.

Fixed to the upper end of'the pin I44 is a housing I 55, preferably madeof two parts I500. and I682), screwed together by a screw IN. Thehousing portion I'GBb may be formed with an internal boss I62, on whichis rotatablymounted a circular vertical grinding wheel I63. Fixed to theinside of the housing part Ifiila is a boss 52a, on which is rotatablymounted an inclined circular grinding wheel "53a. The bottom of thehousing part ISIla is cut away as at IN, to receive the top of the blade28 when the grinding device is in operative position.

In the position shown in Fig. 12, the guard I45 covers the cut awayportion I 40 of the blade housing 22a and the housing I50 is turned awayfrom the blade housing. In this position the grinding device is not inuse. However, the grinding device may be moved to the position shown inFig. by lifting said device, turning the same 180 deg, and thenreinserting the pin I44 within the opening I42. In this position theguard I45 is turned away from the blade and the grinding wheels I53 and"5311 contact opposite surfaces of the portion of the blade. Rotation ofthe blade will then cause the outer edge thereof to be ground andsharpened on both surfaces, which projects into housing I60 throughopening I61.

For turning the rotary blade, a flywheel I H! as shown in Fig. 14 of thedrawings may be substituted for the crank handle 32, said flywheel beingmounted on the shaft SI and having a handle Ill adjacent the periphery.With this construction a greater uniformity of speed of the cuttingblade 28 may be obtained.

It will thus be seen that there is provided a device in which theseveral objects of this invention are achieved, and which is welladapted to meet the conditions of practical use.

formed with an opening I41 1 receiving the pin hi4 therethrough andbeing As various possible embodiments might be made of the aboveinvention, and as various changes might be made in the embodiments setforth, it is to be understood that all matter herein set forth or shownin the accompanyingdrawings is to be interpreted as illustrative and notin a limiting sense. v

Having thus described our invention, we claim as new and desire tosecure by'Letters Patent:--

1. In a slicing machine, the combination of a base, a rotary blademounted on said base and having its axis of rotation in a horizontalplane, a rod slidably mounted on said base, a gauge plate fixed to saidrod for movement therewith, said gauge plate being parallel to saidblade, a plate and a block mounted on said rod whereby to form a slottherebetween, a spring'pressed rounded plunger'mounted in said block,and means for adjusting the position of said gauge plate with respect tosaid blade, said last named means comprising a lever pivotally mountedon said base, and having an arm'at one end thereof provided with acammed flange, said flange being adapted to be received in said slotwhereby said plate is adapted to serve as an abutment bearing againstthe outer surface of said flange transmitting the pressure exerted bythe material against the gauge plate, said ,plunger being adapted topress against the inner surface of said flange, whereby to cause slidingmovement of said rod upon pivotal movement of said lever. I

2. In a slicing machine, the combination of a base, a rotary blademounted on said base and having its axis of rotation in a horizontalplane, a rod slidably mounted on said base, a gauge plate fixed to saidrod for movement therewith, said gauge plate being parallel to saidblade, a plate and a block mounted on said rod whereby to form a slot.therebetween, a spring pressed rounded plunger mounted in said block,and means for adjusting the position of said gauge plate with respect tosaid blade, said last namedmeans comprising a lever pivotally mounted onsaid base,

and having an arm at one end thereof provided with a cammed flange, saidflange being adapted to be received in said slot whereby said plate isadapted to serve as an abutment bearing against the outer surface ofsaid flange transmitting the

